Thyristor having a low-reflection light-triggering structure

Details Thyristor having a low-reflection light-triggering structure Thyristor having a low-reflection light-triggering structure

1991-02-12

1992-01-21

Hille, Rolf

357 30, 357 39, H01L 2974, H01L 29747, H01L 2714

Patent

active

050831771

ABSTRACT:
A thyristor having low-reflection light-triggering structure. In a light-triggerable thyristor, pyramidal depressions are formed in a simple manner by a preferred etching method, being formed in the region of the photon entry face in order to produce a low-reflection light-triggering structure. Incident light is absorbed in the pyramidal depressions largely independent of the wavelength of the incident light and nearly completely. The low-reflection light-triggering structure thereby produced can be formed with relatively little outlay. This is especially true when a defined overhead ignition voltage is simultaneously set by the pyramidal depressions.

REFERENCES:
patent: 3991460 (1976-11-01), Roberts
patent: 4216487 (1980-08-01), Konishi et al.
patent: 4497109 (1985-02-01), Huber et al.
"Novel Gate Structure for High Voltage Light-Triggered Thyristor", from Jap. Journal of Appl. Phy., vol. 21 (1982), Supplement 21-1, pp. 91-96.

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